fig4
![Recent advances in photocatalytic renewable energy production](https://image.oaes.cc/253c5acd-36b0-45f4-9509-a6c7583453d5/4551.fig.4.jpg)
Figure 4. (A) Triazine and (B) tri-s-triazine (heptazine) structures of graphitic carbon nitride (g-C3N4). Reproduced from Ref.[30] with permission from the American Chemical Society.
Figure 4. (A) Triazine and (B) tri-s-triazine (heptazine) structures of graphitic carbon nitride (g-C3N4). Reproduced from Ref.[30] with permission from the American Chemical Society.
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